Perfectly fine with being told IABU.
DD (5) has issues with day wetting, which we're trying to get looked into and we've been open with the school and asked them for suggestions to help. They are good in that they don't stop her going to the loo, will suggest she goes if she's showing signs of needing it, etc. Our biggest problem with DD is actually getting her to change out of wet clothes, which they're perfectly aware of. Also if she knows she can get away with not changing she won't bother.
But they never seem to notice that she's wet. I'm not even talking a small amount of wet. I'm talking sopping knickers and tights wet.
I know she's wetting that badly at least twice a day sometimes (due to her wearing pads normally so no pad and knickers beginning to dry up when I get her home), and I have no idea how they aren't seeing it let alone smelling it.
I appreciate there are 30+ other kids in the class, they're meant to be teaching and they can't hover over her, but WIBU to raise this as a concern with them?